Toyota Camry 1983-1996 Repair Guide

Control Relays

Print

TESTING



1989-91 Models

See Figures 1, 2, 3, 4 and 5



Click image to see an enlarged view

Fig. Fig. 1: Control relays terminal identification-1989-91 models

  1. With the ignition switch OFF , remove the 2 control relays from the actuator. For identification, the solenoid relay has 5 terminals; the pump motor relay has 4 terminals.
  2.  
  3. Check the continuity of the pump motor relay. There should be continuity between terminals 1 and 2. There should be no continuity between terminals 3 and 4 or between terminals 1 and 4.
  4.  
  5. Apply battery voltage to terminal 1 and connect terminal 2 to battery ground. There should be continuity between terminals 3 and 4 but no continuity between terminals 1 and 4.
  6.  



Click image to see an enlarged view

Fig. Fig. 2: Pump motor relay continuity testing-1989-91 models



Click image to see an enlarged view

Fig. Fig. 3: Check the continuity with battery voltage for the pump motor relay-1989-91 models

  1. Check the continuity of the solenoid relay. There should be continuity between terminals 1 and 3 as well as between terminals 2 and 4. There should be no continuity between terminals 4 and 5.
  2.  
  3. Apply battery voltage to terminal 3 and connect terminal 1 to battery ground. There should be continuity between terminals 4 and 5 but no continuity between terminals 2 and 4.
  4.  
  5. All continuity checks must be met; if any check reveals a fault, the relay must be replaced.
  6.  



Click image to see an enlarged view

Fig. Fig. 4: Inspect the solenoid relay continuity at these terminals-1989-91 models



Click image to see an enlarged view

Fig. Fig. 5: Inspect the solenoid relay operation while applying battery voltage-1989-91 models

1992-94 Models

See Figures 6 thru 10



Click image to see an enlarged view

Fig. Fig. 6: Control relays terminal identification-1992-94 models

  1. To inspect the motor relay circuit, turn the ignition switch OFF and remove the control relay from the actuator.
  2.  
  3. Check that there is continuity between terminals 9 and 10, and no continuity between terminals 7 and 8.
  4.  



Click image to see an enlarged view

Fig. Fig. 7: Pump motor relay continuity testing-1992-94 models

  1. If continuity is not as specified above, replace the relay.
  2.  
  3. Connect a jumper wire from the positive battery terminal to terminal 10. Connect a jumper wire from the negative battery terminal to terminal 9 of the relay.
  4.  



Click image to see an enlarged view

Fig. Fig. 8: Check the continuity with battery voltage for the pump motor relay-1992-94 models

  1. Using an ohm meter, check for continuity between terminals 8 and 7 of the relay. Replace the relay if the test results indicate no continuity.
  2.  
  3. To inspect the solenoid relay circuit, with the relay off of the actuator, check for continuity between terminals 1 and 9.
  4.  



Click image to see an enlarged view

Fig. Fig. 9: Inspect the solenoid relay continuity at these terminals-1992-94 models



Click image to see an enlarged view

Fig. Fig. 10: Inspect the solenoid relay operation while applying battery voltage-1992-94 models

  1. Check that there is no continuity between terminals 2 and 5.
  2.  
  3. Connect the positive lead of an ohmmeter to terminal 5 and the negative lead to terminal 4 of the relay. There should be continuity. Reverse the leads of the ohm meter and observe the readings. There should be no continuity.
  4.  
  5. If continuity readings differ from specified results, replace the relay.
  6.  

1995-96 Models

See Figures 11, 12, 13 and 14

If you bring up a code of 11 or 12, proceed with this test.

  1. To inspect the ABS control solenoid relay, turn the ignition switch OFF and remove the control relay from the actuator.
    1. Check the continuity between each terminal of the ABS control relay. Terminals A7 (1) and A6 (3) should have a continuity reference of 80 ohms value. Terminals A7 (5 and A7 (6) should have continuity; and A7 (2) and A7 (5) should be open.
    2.  
    3. Apply battery voltage between terminals A7 (1) and A6 (3). Check the continuity between each terminal of the ABS control relay. Terminals A7 (5) and A7 (6) should be open and A7 (2) and A7 (5) should have continuity.
    4.  
    5. If the test results are not correct, replace the relay. if they are proceed.
    6.  

  2.  



Click image to see an enlarged view

Fig. Fig. 11: Terminal identification for the ABS control relay A7 voltage test-1995-96 models



Click image to see an enlarged view

Fig. Fig. 12: Terminal identification for the ABS control relay continuity test-1995-96 models



Click image to see an enlarged view

Fig. Fig. 13: Checking the continuity between each terminal for codes 11 and 12 of the control relay-1995-96 models

If you bring up a code of 13 or 14, proceed with this test.

  1. Check the continuity between each terminal of the ABS control motor relay. Terminals A6 (3) and A6 (4) should have a value of 62 ohms. Terminals A7 (2) and A6 (2) should be open.
    1. Apply battery voltage between terminals A6 (3) and A6 (4). check the continuity between each of the ABS control relay. If the results are not within specifications, replace the relay.
    2.  

  2.  



Click image to see an enlarged view

Fig. Fig. 14: Checking the continuity for codes 13 and 14 between each terminal of the ABS control relay-1995-96 models

REMOVAL & INSTALLATION



See Figures 15 and 16

The control relays are located in the actuator. There is a plastic case surrounding them, remove this case and unplug the relays.



Click image to see an enlarged view

Fig. Fig. 15: Remove the ABS actuator cover to access the relays



Click image to see an enlarged view

Fig. Fig. 16: There is a cap retaining the relays down inside the casing

 
label.common.footer.alt.autozoneLogo